نتایج جستجو برای: intermittent stream

تعداد نتایج: 93391  

Journal: :Urban Ecosystems 2022

Abstract Wastewater treatment plant (WWTP) effluents alter water chemistry and in-stream nutrient uptake rates of receiving freshwaters, thus changing the magnitude fate nutrients exported. In Mediterranean regions, dilution capacity streams can vary strongly over time due to seasonal occurrence floods droughts, causing temporal variability uptake. We assessed patterns controlling factors net i...

Journal: :journal of current ophthalmology 0
رضا اسدی reza asadi خلیل قاسمی فلاورجانی khalil ghasemi-falavarjani نادیا صدیقی nadia sadighi

purpose : to evaluate the role of orthoptic treatments in the management of intermittent exotropia methods : in a retrospective study, clinical records of patients diagnosed with intermittent exotropia were reviewed. patients with basic, convergence insufficiency (ci) and divergence excess (de) types of intermittent exotropia who underwent orthoptic treatments were enrolled. office treatments i...

Journal: :Ecology 2010
Justin N Murdock Keith B Gido Walter K Dodds Katie N Bertrand Matt R Whiles

Consumers are increasingly being recognized as important drivers of ecological succession, yet it is still hard to predict the nature and direction of consumer effects in nonequilibrium environments. We used stream consumer exclosures and large outdoor mesocosms to study the impact of macroconsumers (i.e., fish and crayfish) on recovery of intermittent prairie streams after drying. In the strea...

2003
R. M. TAYLOR

Ahstrucf.-Despite considerable investigation of stream systems, the influence of fish predation on macroinvertebrate assemblages is still poorly understood and remains a controversial subject. We conducted a field experiment in an intermittent reach of Alum Creek in the Ouachita Mountains, Arkansas, to examine the effects of predatory fish on macroinvertebrate assemblages. We tested the predict...

Journal: :Physics of Fluids 2021

Experiments were conducted to assess the aeroacoustic characteristics of a 30P30N three-element high-lift airfoil fitted with two different types slat cove fillers in Aeroacoustic Facility at University Bristol. The results are presented for angle attack ? = 18° free-stream velocity U? 30 m/s, which corresponds chord-based Reynolds number Rec 7 × 105. Simultaneous measurements unsteady surface ...

2018
María Mar Sánchez-Montoya Daniel von Schiller Gonzalo G Barberá Angela M Díaz Maria Isabel Arce Rubén Del Campo Klement Tockner

In the present study, we examined the effects of different drying conditions on the composition, structure and function of benthic invertebrate assemblages. We approached this objective by comparing invertebrate assemblages in perennial and intermittent sites along two intermittent Mediterranean streams with contrasting predictability, duration, and spatial patterns of drying: Fuirosos (high pr...

2009
John R. Royer Daniel J. Evans Loreto Oyarte Qiti Guo Eliot Kapit Matthias E. Möbius Scott R. Waitukaitis Heinrich M. Jaeger

The discharge of grains from a hopper or silo has received considerable attention, both because it is relevant to numerous industries, and a model system for examining general features of granular flow [1, 2]. These studies have generally focused on the motion of grains inside the hopper and the flow rate of material out of the nozzle. It is known that these systems can exhibit intermittent jam...

Journal: :researchers in sport science quarterly 2010
a.a gaeini m kashef h,r joudaki nejad f kazemi

the purpose of this study was to determine the relationship between blood buffer capacity and aerobic power (vo2max) with ability to perform high intensity intermittent activities in young football players. methods: 27 male football players (age 17.66 ±0.49 years) selected as subjects. blood samples were collected before and after the yoyo intermittent test. then, after 48 hours, the bruce trea...

Journal: :international journal of aquatic biology 0
gurnam singh h.n.b. garhwal central university naresh k agarwal h.n.b. garhwal central university

assiganga stream is an important tributary of bhagirathi river in central himalaya (india). the stream is characterized by heterogeneity in habitat and substratum features harboring diverse fish fauna. at present this stream is facing threat of being fragmented by the construction of two hydro-electric projects. present study aimed to study fish diversity and their habitat use in assiganga stre...

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